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Following earlier studies, imported Japanese knotweed psyllid insects Aphalara itadori, whose only food source is Japanese knotweed, were released at a number of sites in Britain in a study running from 1 April 2010 to 31 March 2014. In 2012, results suggested that establishment and population growth were likely, after the insects overwintered ...
Reynoutria is a genus of flowering plants in the Polygonaceae, also known as the knotweed or buckwheat family.The genus is native to eastern China, Eastern Asia and the Russian Far East, although species have been introduced to Europe and North America. [1]
Knotweed is a common name for plants in several genera in the family Polygonaceae. Knotweed may refer to: Fallopia; Persicaria; Polygonum; Reynoutria. Reynoutria japonica or Japanese knotweed, a highly invasive species in Europe and North America
Persicaria capitata, the pink-headed persicaria, [2] pinkhead smartweed, [3] pink knotweed, Japanese knotweed, or pink bubble persicaria, is an Asian species of plants in the genus Persicaria within the Polygonaceae (US: buckwheat) family.
Her distribution maps showed how the Knotweed hybrids spread across the UK. [6] An unusual hybrid knotweed, Conolly's knotweed, ×Reyllopia conollyana (syn. Fallopia × conollyana) was named in her honour in 2001 for her 84th birthday. [7] This is a hybrid between Japanese knotweed and Russian vine (Fallopia baldschuanica). [8]
Knotweed (Polygonaceae spp.) Knotweed’s long leaves and creeping habits let it rapidly engulf planters and garden spaces, Cummins says. Knock it back with glyphosate or imazapyr, or remove the ...
The metallic green and brown insects are known to feed on more than 300 species of plants, including roses, ornamental trees and vegetables.
Polygonum is a genus of about 130 species of flowering plants in the buckwheat and knotweed family Polygonaceae. Common names include knotweed and knotgrass (though the common names may refer more broadly to plants from Polygonaceae). In the Middle English glossary of herbs Alphita (c. 1400–1425), it was known as ars-smerte.